A practical top-10 list includes: liver (organ meats), red meat, seafood such as sardines or mussels, lentils, chickpeas, beans, pumpkin seeds, sesame/tahini, spinach, and iron-fortified breakfast cereals. Animal sources provide heme iron and absorb better. Plant sources work best when paired with vitamin C (lemon, bell peppers, kiwi). Customize the list to your dietary pattern for best results.